Scholars have unveiled a rare 11th-century palm-leaf manuscript titled 'Siddhanta-Setu' (The Bridge of Established Truth) discovered within a centuries-old private archive in Tirupati. The text offers a revolutionary critique of Nyaya and Mimamsa logic, proposing a third path for validating sensory perception that predates later Navya-Nyaya developments. The manuscript is attributed to a previously unknown scholar, Vidyaranya-Bhatta, whose work seems to have influenced coastal intellectual circles.
The 'Siddhanta-Setu' focuses on the 'Philosophy of Cognitive Anchoring,' arguing that truth is not merely an object of perception but a relational event between the observer and the environment. This find is expected to trigger a major re-evaluation of medieval Indian epistemology, particularly regarding the internal consistency of Vedic logical frameworks. Preservation experts are currently digitizing the leaves to facilitate global scholarly access.